So, its that "two more days till Friday" feeling. We all know our brain tanks are running on half empty and are not as vibrant as the start of the week. And like our bodies, our minds need a good stretch and quick wake up!

If your like me and you love a good brain teaser, get involved in the"Spot The Difference Challenge" and see how many changes you can see in this weeks images!

Don't panic, there will be a variety of difficulties some easy to the eye and some....... not so easy! We may even be giving away a free shoot for the most found! so keep updated with the images and let the brain teasing commence!